7/31/2023 0 Comments Arduino uno atmega328 datasheet![]() ![]() User line_code from recently received an ATMEGA328P-U (or actually ATMEGA328P U) from Mouser (a company which you would not suspect to send out fakes or source from the gray market). I think you need to pull up the Automotive data sheet to see the Z numbered parts.Īnd the PB is a different data sheet as well. Tables 38.7 and 38.8 lists these options for the 328 and 328P for example, with H indicating a type of lead finish, and R indicating Tape & Reel availability: 15MZ - 32 pin leadless package rated for a higher temperature rangeĪny letters to the right of those seen when ordering indicate the method they are supplied - loose parts, parts in a reel, parts in a tube, etc.Īnything else is either an older part that did not follow the convention, or is a counterfeit part. 15AZ - 32 pin TQFP, rated for a higher temperature range MM - 28 pin leadless package, smaller than 32 pin leadless ![]() They can be had in different packaging, this is what Digikey is showing as available options: Serial downloading may end up ignoring the signature bytes of a bootloaded part. Generally tho the programming software needs to know which part type is being used, at a minimum for installing bootloader code. ![]() All have different signature bytes which may or may not impact loading code into them. ![]()
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